| Part Number | HD68B21 |
| Manufacturer | Hitachi |
| Title | Peripheral Interface Adapter |
| Description | HD6821, HD68A21, HD68B21 P I A (Peripheral Interface Adapter) The HD6821 Peripheral Interface Adapter provides the universal means of interfacin... |
| Features |
Two Bi-directional 8-Bit Peripheral Data Bus for interface to Peripheral devices Two Programmable Control Registers Two Programmable Data Direction Registers Four Individually-Controlled Interrupt Input Lines: Two Usable as Peripheral Control Outputs...
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| Datasheet |
 HD68B21 Datasheet
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